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add proper support for subtitles muxing/stream copying

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Originally committed as revision 9798 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Aurelien Jacobs 2007-07-25 19:47:44 +00:00
parent 8e0d882b49
commit 11bf3847b3
2 changed files with 41 additions and 13 deletions
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52
ffmpeg.c
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@ -150,6 +150,7 @@ static int audio_codec_id = CODEC_ID_NONE;
static int audio_codec_tag = 0;
static char *audio_language = NULL;
static int subtitle_disable = 0;
static int subtitle_codec_id = CODEC_ID_NONE;
static char *subtitle_language = NULL;
@ -2624,6 +2625,8 @@ static void opt_input_file(const char *filename)
case CODEC_TYPE_DATA:
break;
case CODEC_TYPE_SUBTITLE:
if(subtitle_disable)
ic->streams[i]->discard = AVDISCARD_ALL;
break;
case CODEC_TYPE_UNKNOWN:
break;
@ -2647,13 +2650,15 @@ static void opt_input_file(const char *filename)
rate_emu = 0;
}
static void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr)
static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
int *has_subtitle_ptr)
{
int has_video, has_audio, i, j;
int has_video, has_audio, has_subtitle, i, j;
AVFormatContext *ic;
has_video = 0;
has_audio = 0;
has_subtitle = 0;
for(j=0;j<nb_input_files;j++) {
ic = input_files[j];
for(i=0;i<ic->nb_streams;i++) {
@ -2665,9 +2670,11 @@ static void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr)
case CODEC_TYPE_VIDEO:
has_video = 1;
break;
case CODEC_TYPE_SUBTITLE:
has_subtitle = 1;
break;
case CODEC_TYPE_DATA:
case CODEC_TYPE_UNKNOWN:
case CODEC_TYPE_SUBTITLE:
break;
default:
abort();
@ -2676,6 +2683,7 @@ static void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr)
}
*has_video_ptr = has_video;
*has_audio_ptr = has_audio;
*has_subtitle_ptr = has_subtitle;
}
static void new_video_stream(AVFormatContext *oc)
@ -2901,19 +2909,12 @@ static void new_audio_stream(AVFormatContext *oc)
audio_stream_copy = 0;
}
static void opt_new_subtitle_stream(void)
static void new_subtitle_stream(AVFormatContext *oc)
{
AVFormatContext *oc;
AVStream *st;
AVCodecContext *subtitle_enc;
int i;
if (nb_output_files <= 0) {
fprintf(stderr, "At least one output file must be specified\n");
exit(1);
}
oc = output_files[nb_output_files - 1];
st = av_new_stream(oc, oc->nb_streams);
if (!st) {
fprintf(stderr, "Could not alloc stream\n");
@ -2941,6 +2942,7 @@ static void opt_new_subtitle_stream(void)
subtitle_language = NULL;
}
subtitle_disable = 0;
subtitle_codec_id = CODEC_ID_NONE;
subtitle_stream_copy = 0;
}
@ -2967,10 +2969,22 @@ static void opt_new_video_stream(void)
new_video_stream(oc);
}
static void opt_new_subtitle_stream(void)
{
AVFormatContext *oc;
if (nb_output_files <= 0) {
fprintf(stderr, "At least one output file must be specified\n");
exit(1);
}
oc = output_files[nb_output_files - 1];
new_subtitle_stream(oc);
}
static void opt_output_file(const char *filename)
{
AVFormatContext *oc;
int use_video, use_audio, input_has_video, input_has_audio, i;
int use_video, use_audio, use_subtitle;
int input_has_video, input_has_audio, input_has_subtitle, i;
AVFormatParameters params, *ap = &params;
if (!strcmp(filename, "-"))
@ -3001,15 +3015,19 @@ static void opt_output_file(const char *filename)
} else {
use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_id != CODEC_ID_NONE;
use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_id != CODEC_ID_NONE;
use_subtitle = file_oformat->subtitle_codec != CODEC_ID_NONE || subtitle_stream_copy || subtitle_codec_id != CODEC_ID_NONE;
/* disable if no corresponding type found and at least one
input file */
if (nb_input_files > 0) {
check_audio_video_inputs(&input_has_video, &input_has_audio);
check_audio_video_sub_inputs(&input_has_video, &input_has_audio,
&input_has_subtitle);
if (!input_has_video)
use_video = 0;
if (!input_has_audio)
use_audio = 0;
if (!input_has_subtitle)
use_subtitle = 0;
}
/* manual disable */
@ -3019,6 +3037,9 @@ static void opt_output_file(const char *filename)
if (video_disable) {
use_video = 0;
}
if (subtitle_disable) {
use_subtitle = 0;
}
if (use_video) {
new_video_stream(oc);
@ -3028,6 +3049,10 @@ static void opt_output_file(const char *filename)
new_audio_stream(oc);
}
if (use_subtitle) {
new_subtitle_stream(oc);
}
oc->timestamp = rec_timestamp;
if (str_title)
@ -3635,6 +3660,7 @@ const OptionDef options[] = {
{ "alang", HAS_ARG | OPT_STRING | OPT_AUDIO, {(void *)&audio_language}, "set the ISO 639 language code (3 letters) of the current audio stream" , "code" },
/* subtitle options */
{ "sn", OPT_BOOL | OPT_SUBTITLE, {(void*)&subtitle_disable}, "disable subtitle" },
{ "scodec", HAS_ARG | OPT_SUBTITLE, {(void*)opt_subtitle_codec}, "force subtitle codec ('copy' to copy stream)", "codec" },
{ "newsubtitle", OPT_SUBTITLE, {(void*)opt_new_subtitle_stream}, "add a new subtitle stream to the current output stream" },
{ "slang", HAS_ARG | OPT_STRING | OPT_SUBTITLE, {(void *)&subtitle_language}, "set the ISO 639 language code (3 letters) of the current subtitle stream" , "code" },

2
libavformat/avformat.h
View File

@ -186,6 +186,8 @@ typedef struct AVOutputFormat {
*/
const struct AVCodecTag **codec_tag;
enum CodecID subtitle_codec; /**< default subtitle codec */
/* private fields */
struct AVOutputFormat *next;
} AVOutputFormat;